Advances in olfactory interaction studies between the bark beetles of Tomicus yunnanensis and Tomicus minor

This paper comprehensively reviews the research progress on two bark beetle species across multiple aspects, including semiochemicals, olfactory sensilla, odorant-binding proteins (OBPs), and odorant receptors (ORs). Specifically, it provides a detailed synthesis of: the behavioral regulation mechanisms mediated by semiochemicals, the diversity and differentiation between olfactory sensors and semiochemicals, andthe tripartite interactions among OBPs/ORs, semiochemicals, and behavioral responses. We further propose a framework for decoding the olfactory interplay between the two species.